import { Link, useNavigate } from "react-router-dom"
import { Card, Breadcrumb, Form, Button, DatePicker, Select, Radio, Table, Tag, Space, Popconfirm} from 'antd'
import { EditOutlined, DeleteOutlined } from '@ant-design/icons'
// 时间选择器汉化包
import locale from "antd/es/date-picker/locale/zh_CN"
import img404 from '@/assets/error.png'
import { useChannel } from "../hooks/useChannel"
import { useEffect, useState } from "react"
import { delArticleAPI, getArticleAPI } from "@/apis/article"

const { Option } = Select
const { RangePicker } = DatePicker

const Article = () => {
  const navigate = useNavigate()
  // 频道列表
  const { channelList } = useChannel()
  // 获取文章列表
  const [ articleList, setArticleList ] = useState([])
  // 查询结果
  const [ count, setCount ] = useState(0)

  // 筛选:1.准备完整的请求参数对象
  const [ reqData, setReqData ] = useState({
    status: '',
    channel_id: '',
    begin_pubdate: '',
    end_pubdate: '',
    page: 1,
    per_page: 10
  })
  // 初始化渲染
  useEffect(() => {
    const getArticleList = async () => {
      const res = await getArticleAPI(reqData)
      setArticleList(res.data.results)
      setCount(res.data.total_count)
    }
    getArticleList()
  }, [reqData])

  // 筛选:2.获取用户选择表单数据
  const onFinish = (formValue) => {
    // console.log(formValue);
    // 3.表单数据放到参数里
    setReqData({
      ...reqData,
      status: formValue.status,
      channel_id: formValue.channel_id,
      begin_pubdate: formValue.data ?  formValue.data[0].format('YYYY-MM-DD') : '',
      end_pubdate: formValue.data ?  formValue.data[1].format('YYYY-MM-DD') : '',
      page: 1,
      per_page: 10
    })
    // 4.重新拉去文章列表+渲染table  复用
    // reqData依赖性发送改变，重新执行useEffect
  }

  // 分页
  const onPageChange = (page) => {
    console.log(page);
    setReqData({
      ...reqData,
      page: page
    })
  }

  // 删除文章回调
  const onConfirm = async (data) => {
    // console.log(data);
    await delArticleAPI(data.id)
    setReqData({
      ...reqData
    })
  }


  const status = {
    1: <Tag color="warning">待审核</Tag>,
    2: <Tag color="success">审核通过</Tag>
  }
  const columns = [
    {
      title: '封面',
      dataIndex: 'cover',
      width: 80,
      height: 60,
      render: cover => {
        return <img src={cover.images[0] || img404} width={80} height={60} alt="" />
      }
    },
    {
      title: '标题',
      dataIndex: 'title',
      width: 220
    },
    {
      title: '状态',
      dataIndex: 'status',
      // data - 后端返回的状态status 根据它做条件渲染
      // data === 1 => 待审核
      // data === 2 => 审核通过
      render: data => status[data]
    },
    {
      title: '发布时间',
      dataIndex: 'pubdate'
    },
    {
      title: '阅读数',
      dataIndex: 'read_count'
    },
    {
      title: '评论数',
      dataIndex: 'comment_count'
    },
    {
      title: '点赞数',
      dataIndex: 'like_count'
    },
    {
      title: '操作',
      render: data => {
        return (
          <Space size="middle">
            <Button type="primary" shape="circle" icon={<EditOutlined />} onClick={() => navigate(`/publish?id=${data.id}`)} />
            <Popconfirm
              title="删除文章"
              description="确认要删除当前文章吗?"
              onConfirm={() => onConfirm(data)}
              okText="确认"
              cancelText="取消"
            >
              <Button
                type="primary"
                danger
                shape="circle"
                icon={<DeleteOutlined />}
              />
            </Popconfirm>
          </Space>
        )
      }
    }
  ]
  return(
    <div className="Article">
      <Card
        title={
          <Breadcrumb items={[
            { title: <Link to={'/'}>首页</Link> },
            { title: '文章列表'}
          ]}/>
        } 
        style={{ marginBottom: 20 }}>
          <Form initialValues={{ status: null }} onFinish={onFinish}>
            <Form.Item label='状态' name='status'>
              <Radio.Group>
                <Radio value={null}>全部</Radio>
                <Radio value={0}>草稿</Radio>
                <Radio value={2}>审核发送</Radio>
              </Radio.Group>
            </Form.Item>
            <Form.Item label='频道' name='channel_id'>
              <Select placeholder='请选择文章频道' defaultValue='推荐' style={{ width: 120 }}>
                {channelList.map(item => <Option value={item.id}>{item.name}</Option>)}
              </Select>
            </Form.Item>
            <Form.Item label='日期' name='data'>
              <RangePicker locale={locale}/>
            </Form.Item>
            <Form.Item>
              <Button type="primary" htmlType="submit" style={{ marginLeft: 40 }}>筛选</Button>
            </Form.Item>
          </Form>
      </Card>
      {/* 表格区域 */}
      <Card title={`根据筛选条件共查询到 ${count} 条结果`}>
        <Table rowKey='id' columns={columns} dataSource={articleList} pagination={{
          total: count,
          pageSize: reqData.per_page,
          position: ["bottomCenter"],
          showSizeChanger: false,
          showQuickJumper: true,
          onChange: onPageChange
        }}/>
      </Card>
    </div>
  )
}
export default Article